5 HDMI 2.1 Inputs Instead of 8 HDMI 2.1 is not relevant in my opinion.
There are no Blueray player that are 8K .
Apple TV and NVidia Shield Pro are 4K
I think , only gaming gears like PS5 ( ? ) and others , are 8K.
Some television are 8K , but for the 8K effects , you need at least 85 inches.